2 Unix SMB/CIFS implementation.
3 Samba internal messaging functions
4 Copyright (C) 2007 by Volker Lendecke
5 Copyright (C) 2007 by Andrew Tridgell
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #ifdef CLUSTER_SUPPORT
26 #include "ctdbd_conn.h"
27 #include "ctdb_packet.h"
31 * It is not possible to include ctdb.h and tdb_compat.h (included via
32 * some other include above) without warnings. This fixes those
40 #ifdef typesafe_cb_preargs
41 #undef typesafe_cb_preargs
44 #ifdef typesafe_cb_postargs
45 #undef typesafe_cb_postargs
48 /* paths to these include files come from --with-ctdb= in configure */
51 #include "ctdb_private.h"
53 struct ctdbd_connection
{
54 struct messaging_context
*msg_ctx
;
58 struct ctdb_packet_context
*pkt
;
61 void (*release_ip_handler
)(const char *ip_addr
, void *private_data
);
62 void *release_ip_priv
;
65 static uint32_t ctdbd_next_reqid(struct ctdbd_connection
*conn
)
68 if (conn
->reqid
== 0) {
74 static NTSTATUS
ctdbd_control(struct ctdbd_connection
*conn
,
75 uint32_t vnn
, uint32 opcode
,
76 uint64_t srvid
, uint32_t flags
, TDB_DATA data
,
77 TALLOC_CTX
*mem_ctx
, TDB_DATA
*outdata
,
81 * exit on fatal communications errors with the ctdbd daemon
83 static void cluster_fatal(const char *why
)
85 DEBUG(0,("cluster fatal event: %s - exiting immediately\n", why
));
86 /* we don't use smb_panic() as we don't want to delay to write
87 a core file. We need to release this process id immediately
88 so that someone else can take over without getting sharing
96 static void ctdb_packet_dump(struct ctdb_req_header
*hdr
)
98 if (DEBUGLEVEL
< 10) {
101 DEBUGADD(10, ("len=%d, magic=%x, vers=%d, gen=%d, op=%d, reqid=%d\n",
102 (int)hdr
->length
, (int)hdr
->ctdb_magic
,
103 (int)hdr
->ctdb_version
, (int)hdr
->generation
,
104 (int)hdr
->operation
, (int)hdr
->reqid
));
108 * Register a srvid with ctdbd
110 NTSTATUS
register_with_ctdbd(struct ctdbd_connection
*conn
, uint64_t srvid
)
114 return ctdbd_control(conn
, CTDB_CURRENT_NODE
,
115 CTDB_CONTROL_REGISTER_SRVID
, srvid
, 0,
116 tdb_null
, NULL
, NULL
, &cstatus
);
120 * get our vnn from the cluster
122 static NTSTATUS
get_cluster_vnn(struct ctdbd_connection
*conn
, uint32
*vnn
)
126 status
= ctdbd_control(conn
,
127 CTDB_CURRENT_NODE
, CTDB_CONTROL_GET_PNN
, 0, 0,
128 tdb_null
, NULL
, NULL
, &cstatus
);
129 if (!NT_STATUS_IS_OK(status
)) {
130 cluster_fatal("ctdbd_control failed\n");
132 *vnn
= (uint32_t)cstatus
;
137 * Are we active (i.e. not banned or stopped?)
139 static bool ctdbd_working(struct ctdbd_connection
*conn
, uint32_t vnn
)
144 struct ctdb_node_map
*m
;
145 uint32_t failure_flags
;
149 status
= ctdbd_control(conn
, CTDB_CURRENT_NODE
,
150 CTDB_CONTROL_GET_NODEMAP
, 0, 0,
151 tdb_null
, talloc_tos(), &outdata
, &cstatus
);
152 if (!NT_STATUS_IS_OK(status
)) {
153 cluster_fatal("ctdbd_control failed\n");
155 if ((cstatus
!= 0) || (outdata
.dptr
== NULL
)) {
156 DEBUG(2, ("Received invalid ctdb data\n"));
160 m
= (struct ctdb_node_map
*)outdata
.dptr
;
162 for (i
=0; i
<m
->num
; i
++) {
163 if (vnn
== m
->nodes
[i
].pnn
) {
169 DEBUG(2, ("Did not find ourselves (node %d) in nodemap\n",
174 failure_flags
= NODE_FLAGS_BANNED
| NODE_FLAGS_DISCONNECTED
175 | NODE_FLAGS_PERMANENTLY_DISABLED
| NODE_FLAGS_STOPPED
;
177 if ((m
->nodes
[i
].flags
& failure_flags
) != 0) {
178 DEBUG(2, ("Node has status %x, not active\n",
179 (int)m
->nodes
[i
].flags
));
185 TALLOC_FREE(outdata
.dptr
);
189 uint32
ctdbd_vnn(const struct ctdbd_connection
*conn
)
191 return conn
->our_vnn
;
195 * Get us a ctdb connection
198 static NTSTATUS
ctdbd_connect(TALLOC_CTX
*mem_ctx
,
199 struct ctdb_packet_context
**presult
)
201 struct ctdb_packet_context
*result
;
202 const char *sockname
= lp_ctdbd_socket();
203 struct sockaddr_un addr
;
206 if (!sockname
|| !*sockname
) {
207 sockname
= CTDB_PATH
;
210 fd
= socket(AF_UNIX
, SOCK_STREAM
, 0);
212 DEBUG(3, ("Could not create socket: %s\n", strerror(errno
)));
213 return map_nt_error_from_unix(errno
);
217 addr
.sun_family
= AF_UNIX
;
218 strncpy(addr
.sun_path
, sockname
, sizeof(addr
.sun_path
));
220 if (sys_connect(fd
, (struct sockaddr
*)(void *)&addr
) == -1) {
221 DEBUG(1, ("connect(%s) failed: %s\n", sockname
,
224 return map_nt_error_from_unix(errno
);
227 if (!(result
= ctdb_packet_init(mem_ctx
, fd
))) {
229 return NT_STATUS_NO_MEMORY
;
237 * Do we have a complete ctdb packet in the queue?
240 static bool ctdb_req_complete(const uint8_t *buf
, size_t available
,
246 if (available
< sizeof(msglen
)) {
250 msglen
= *((uint32
*)buf
);
252 DEBUG(10, ("msglen = %d\n", msglen
));
254 if (msglen
< sizeof(struct ctdb_req_header
)) {
255 DEBUG(0, ("Got invalid msglen: %d, expected at least %d for "
256 "the req_header\n", (int)msglen
,
257 (int)sizeof(struct ctdb_req_header
)));
258 cluster_fatal("ctdbd protocol error\n");
261 if (available
< msglen
) {
270 * State necessary to defer an incoming message while we are waiting for a
274 struct deferred_msg_state
{
275 struct messaging_context
*msg_ctx
;
276 struct messaging_rec
*rec
;
280 * Timed event handler for the deferred message
283 static void deferred_message_dispatch(struct event_context
*event_ctx
,
284 struct timed_event
*te
,
288 struct deferred_msg_state
*state
= talloc_get_type_abort(
289 private_data
, struct deferred_msg_state
);
291 messaging_dispatch_rec(state
->msg_ctx
, state
->rec
);
296 struct req_pull_state
{
302 * Pull a ctdb request out of the incoming ctdb_packet queue
305 static NTSTATUS
ctdb_req_pull(uint8_t *buf
, size_t length
,
308 struct req_pull_state
*state
= (struct req_pull_state
*)private_data
;
310 state
->req
.data
= talloc_move(state
->mem_ctx
, &buf
);
311 state
->req
.length
= length
;
316 * Fetch a messaging_rec from an incoming ctdb style message
319 static struct messaging_rec
*ctdb_pull_messaging_rec(TALLOC_CTX
*mem_ctx
,
320 size_t overall_length
,
321 struct ctdb_req_message
*msg
)
323 struct messaging_rec
*result
;
325 enum ndr_err_code ndr_err
;
327 if ((overall_length
< offsetof(struct ctdb_req_message
, data
))
329 < offsetof(struct ctdb_req_message
, data
) + msg
->datalen
)) {
331 cluster_fatal("got invalid msg length");
334 if (!(result
= talloc(mem_ctx
, struct messaging_rec
))) {
335 DEBUG(0, ("talloc failed\n"));
339 blob
= data_blob_const(msg
->data
, msg
->datalen
);
341 ndr_err
= ndr_pull_struct_blob(
342 &blob
, result
, result
,
343 (ndr_pull_flags_fn_t
)ndr_pull_messaging_rec
);
345 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
346 DEBUG(0, ("ndr_pull_struct_blob failed: %s\n",
347 ndr_errstr(ndr_err
)));
352 if (DEBUGLEVEL
>= 10) {
353 DEBUG(10, ("ctdb_pull_messaging_rec:\n"));
354 NDR_PRINT_DEBUG(messaging_rec
, result
);
360 static NTSTATUS
ctdb_packet_fd_read_sync(struct ctdb_packet_context
*ctx
)
362 int timeout
= lp_ctdb_timeout();
367 return ctdb_packet_fd_read_sync_timeout(ctx
, timeout
);
371 * Read a full ctdbd request. If we have a messaging context, defer incoming
372 * messages that might come in between.
375 static NTSTATUS
ctdb_read_req(struct ctdbd_connection
*conn
, uint32 reqid
,
376 TALLOC_CTX
*mem_ctx
, void *result
)
378 struct ctdb_req_header
*hdr
;
379 struct req_pull_state state
;
384 state
.mem_ctx
= mem_ctx
;
386 while (!ctdb_packet_handler(conn
->pkt
, ctdb_req_complete
,
387 ctdb_req_pull
, &state
, &status
)) {
391 status
= ctdb_packet_fd_read_sync(conn
->pkt
);
393 if (NT_STATUS_EQUAL(status
, NT_STATUS_NETWORK_BUSY
)) {
396 } else if (NT_STATUS_EQUAL(status
, NT_STATUS_RETRY
)) {
401 if (!NT_STATUS_IS_OK(status
)) {
402 DEBUG(0, ("packet_fd_read failed: %s\n", nt_errstr(status
)));
403 cluster_fatal("ctdbd died\n");
407 if (!NT_STATUS_IS_OK(status
)) {
408 DEBUG(0, ("Could not read ctdb_packet: %s\n", nt_errstr(status
)));
409 cluster_fatal("ctdbd died\n");
412 hdr
= (struct ctdb_req_header
*)state
.req
.data
;
414 DEBUG(10, ("Received ctdb packet\n"));
415 ctdb_packet_dump(hdr
);
417 if (hdr
->operation
== CTDB_REQ_MESSAGE
) {
418 struct timed_event
*evt
;
419 struct deferred_msg_state
*msg_state
;
420 struct ctdb_req_message
*msg
= (struct ctdb_req_message
*)hdr
;
422 if (conn
->msg_ctx
== NULL
) {
423 DEBUG(1, ("Got a message without having a msg ctx, "
424 "dropping msg %llu\n",
425 (long long unsigned)msg
->srvid
));
429 if ((conn
->release_ip_handler
!= NULL
)
430 && (msg
->srvid
== CTDB_SRVID_RELEASE_IP
)) {
431 /* must be dispatched immediately */
432 DEBUG(10, ("received CTDB_SRVID_RELEASE_IP\n"));
433 conn
->release_ip_handler((const char *)msg
->data
,
434 conn
->release_ip_priv
);
439 if ((msg
->srvid
== CTDB_SRVID_RECONFIGURE
)
440 || (msg
->srvid
== CTDB_SRVID_SAMBA_NOTIFY
)) {
442 DEBUG(1, ("ctdb_read_req: Got %s message\n",
443 (msg
->srvid
== CTDB_SRVID_RECONFIGURE
)
444 ? "cluster reconfigure" : "SAMBA_NOTIFY"));
446 messaging_send(conn
->msg_ctx
,
447 messaging_server_id(conn
->msg_ctx
),
448 MSG_SMB_BRL_VALIDATE
, &data_blob_null
);
449 messaging_send(conn
->msg_ctx
,
450 messaging_server_id(conn
->msg_ctx
),
451 MSG_DBWRAP_G_LOCK_RETRY
,
457 msg_state
= talloc(NULL
, struct deferred_msg_state
);
458 if (msg_state
== NULL
) {
459 DEBUG(0, ("talloc failed\n"));
464 if (!(msg_state
->rec
= ctdb_pull_messaging_rec(
465 msg_state
, state
.req
.length
, msg
))) {
466 DEBUG(0, ("ctdbd_pull_messaging_rec failed\n"));
467 TALLOC_FREE(msg_state
);
474 msg_state
->msg_ctx
= conn
->msg_ctx
;
477 * We're waiting for a call reply, but an async message has
478 * crossed. Defer dispatching to the toplevel event loop.
480 evt
= event_add_timed(conn
->msg_ctx
->event_ctx
,
481 conn
->msg_ctx
->event_ctx
,
483 deferred_message_dispatch
,
486 DEBUG(0, ("event_add_timed failed\n"));
487 TALLOC_FREE(msg_state
);
495 if ((reqid
!= 0) && (hdr
->reqid
!= reqid
)) {
496 /* we got the wrong reply */
497 DEBUG(0,("Discarding mismatched ctdb reqid %u should have "
498 "been %u\n", hdr
->reqid
, reqid
));
503 *((void **)result
) = talloc_move(mem_ctx
, &hdr
);
509 * Get us a ctdbd connection
512 static NTSTATUS
ctdbd_init_connection(TALLOC_CTX
*mem_ctx
,
513 struct ctdbd_connection
**pconn
)
515 struct ctdbd_connection
*conn
;
518 if (!(conn
= talloc_zero(mem_ctx
, struct ctdbd_connection
))) {
519 DEBUG(0, ("talloc failed\n"));
520 return NT_STATUS_NO_MEMORY
;
523 status
= ctdbd_connect(conn
, &conn
->pkt
);
525 if (!NT_STATUS_IS_OK(status
)) {
526 DEBUG(10, ("ctdbd_connect failed: %s\n", nt_errstr(status
)));
530 status
= get_cluster_vnn(conn
, &conn
->our_vnn
);
532 if (!NT_STATUS_IS_OK(status
)) {
533 DEBUG(10, ("get_cluster_vnn failed: %s\n", nt_errstr(status
)));
537 if (!ctdbd_working(conn
, conn
->our_vnn
)) {
538 DEBUG(2, ("Node is not working, can not connect\n"));
539 status
= NT_STATUS_INTERNAL_DB_ERROR
;
543 generate_random_buffer((unsigned char *)&conn
->rand_srvid
,
544 sizeof(conn
->rand_srvid
));
546 status
= register_with_ctdbd(conn
, conn
->rand_srvid
);
548 if (!NT_STATUS_IS_OK(status
)) {
549 DEBUG(5, ("Could not register random srvid: %s\n",
563 * Get us a ctdbd connection and register us as a process
566 NTSTATUS
ctdbd_messaging_connection(TALLOC_CTX
*mem_ctx
,
567 struct ctdbd_connection
**pconn
)
569 struct ctdbd_connection
*conn
;
572 status
= ctdbd_init_connection(mem_ctx
, &conn
);
574 if (!NT_STATUS_IS_OK(status
)) {
578 status
= register_with_ctdbd(conn
, (uint64_t)sys_getpid());
579 if (!NT_STATUS_IS_OK(status
)) {
583 status
= register_with_ctdbd(conn
, MSG_SRVID_SAMBA
);
584 if (!NT_STATUS_IS_OK(status
)) {
588 status
= register_with_ctdbd(conn
, CTDB_SRVID_SAMBA_NOTIFY
);
589 if (!NT_STATUS_IS_OK(status
)) {
601 struct messaging_context
*ctdb_conn_msg_ctx(struct ctdbd_connection
*conn
)
603 return conn
->msg_ctx
;
606 int ctdbd_conn_get_fd(struct ctdbd_connection
*conn
)
608 return ctdb_packet_get_fd(conn
->pkt
);
612 * Packet handler to receive and handle a ctdb message
614 static NTSTATUS
ctdb_handle_message(uint8_t *buf
, size_t length
,
617 struct ctdbd_connection
*conn
= talloc_get_type_abort(
618 private_data
, struct ctdbd_connection
);
619 struct ctdb_req_message
*msg
;
620 struct messaging_rec
*msg_rec
;
622 msg
= (struct ctdb_req_message
*)buf
;
624 if (msg
->hdr
.operation
!= CTDB_REQ_MESSAGE
) {
625 DEBUG(0, ("Received async msg of type %u, discarding\n",
626 msg
->hdr
.operation
));
628 return NT_STATUS_INVALID_PARAMETER
;
631 if ((conn
->release_ip_handler
!= NULL
)
632 && (msg
->srvid
== CTDB_SRVID_RELEASE_IP
)) {
633 /* must be dispatched immediately */
634 DEBUG(10, ("received CTDB_SRVID_RELEASE_IP\n"));
635 conn
->release_ip_handler((const char *)msg
->data
,
636 conn
->release_ip_priv
);
641 SMB_ASSERT(conn
->msg_ctx
!= NULL
);
643 if ((msg
->srvid
== CTDB_SRVID_RECONFIGURE
)
644 || (msg
->srvid
== CTDB_SRVID_SAMBA_NOTIFY
)){
645 DEBUG(0,("Got cluster reconfigure message\n"));
647 * when the cluster is reconfigured or someone of the
648 * family has passed away (SAMBA_NOTIFY), we need to
649 * clean the brl database
651 messaging_send(conn
->msg_ctx
,
652 messaging_server_id(conn
->msg_ctx
),
653 MSG_SMB_BRL_VALIDATE
, &data_blob_null
);
655 messaging_send(conn
->msg_ctx
,
656 messaging_server_id(conn
->msg_ctx
),
657 MSG_DBWRAP_G_LOCK_RETRY
,
664 /* only messages to our pid or the broadcast are valid here */
665 if (msg
->srvid
!= sys_getpid() && msg
->srvid
!= MSG_SRVID_SAMBA
) {
666 DEBUG(0,("Got unexpected message with srvid=%llu\n",
667 (unsigned long long)msg
->srvid
));
672 if (!(msg_rec
= ctdb_pull_messaging_rec(NULL
, length
, msg
))) {
673 DEBUG(10, ("ctdb_pull_messaging_rec failed\n"));
675 return NT_STATUS_NO_MEMORY
;
678 messaging_dispatch_rec(conn
->msg_ctx
, msg_rec
);
680 TALLOC_FREE(msg_rec
);
686 * The ctdbd socket is readable asynchronuously
689 static void ctdbd_socket_handler(struct event_context
*event_ctx
,
690 struct fd_event
*event
,
694 struct ctdbd_connection
*conn
= talloc_get_type_abort(
695 private_data
, struct ctdbd_connection
);
699 status
= ctdb_packet_fd_read(conn
->pkt
);
701 if (!NT_STATUS_IS_OK(status
)) {
702 DEBUG(0, ("packet_fd_read failed: %s\n", nt_errstr(status
)));
703 cluster_fatal("ctdbd died\n");
706 while (ctdb_packet_handler(conn
->pkt
, ctdb_req_complete
,
707 ctdb_handle_message
, conn
, &status
)) {
708 if (!NT_STATUS_IS_OK(status
)) {
709 DEBUG(10, ("could not handle incoming message: %s\n",
716 * Prepare a ctdbd connection to receive messages
719 NTSTATUS
ctdbd_register_msg_ctx(struct ctdbd_connection
*conn
,
720 struct messaging_context
*msg_ctx
)
722 SMB_ASSERT(conn
->msg_ctx
== NULL
);
723 SMB_ASSERT(conn
->fde
== NULL
);
725 if (!(conn
->fde
= event_add_fd(msg_ctx
->event_ctx
, conn
,
726 ctdb_packet_get_fd(conn
->pkt
),
728 ctdbd_socket_handler
,
730 DEBUG(0, ("event_add_fd failed\n"));
731 return NT_STATUS_NO_MEMORY
;
734 conn
->msg_ctx
= msg_ctx
;
740 * Send a messaging message across a ctdbd
743 NTSTATUS
ctdbd_messaging_send(struct ctdbd_connection
*conn
,
744 uint32 dst_vnn
, uint64 dst_srvid
,
745 struct messaging_rec
*msg
)
747 struct ctdb_req_message r
;
751 enum ndr_err_code ndr_err
;
753 if (!(mem_ctx
= talloc_init("ctdbd_messaging_send"))) {
754 DEBUG(0, ("talloc failed\n"));
755 return NT_STATUS_NO_MEMORY
;
758 ndr_err
= ndr_push_struct_blob(
760 (ndr_push_flags_fn_t
)ndr_push_messaging_rec
);
762 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
763 DEBUG(0, ("ndr_push_struct_blob failed: %s\n",
764 ndr_errstr(ndr_err
)));
765 status
= ndr_map_error2ntstatus(ndr_err
);
769 r
.hdr
.length
= offsetof(struct ctdb_req_message
, data
) + blob
.length
;
770 r
.hdr
.ctdb_magic
= CTDB_MAGIC
;
771 r
.hdr
.ctdb_version
= CTDB_VERSION
;
772 r
.hdr
.generation
= 1;
773 r
.hdr
.operation
= CTDB_REQ_MESSAGE
;
774 r
.hdr
.destnode
= dst_vnn
;
775 r
.hdr
.srcnode
= conn
->our_vnn
;
778 r
.datalen
= blob
.length
;
780 DEBUG(10, ("ctdbd_messaging_send: Sending ctdb packet\n"));
781 ctdb_packet_dump(&r
.hdr
);
783 status
= ctdb_packet_send(
785 data_blob_const(&r
, offsetof(struct ctdb_req_message
, data
)),
788 if (!NT_STATUS_IS_OK(status
)) {
789 DEBUG(0, ("ctdb_packet_send failed: %s\n", nt_errstr(status
)));
793 status
= ctdb_packet_flush(conn
->pkt
);
795 if (!NT_STATUS_IS_OK(status
)) {
796 DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status
)));
797 cluster_fatal("cluster dispatch daemon msg write error\n");
800 status
= NT_STATUS_OK
;
802 TALLOC_FREE(mem_ctx
);
807 * send/recv a generic ctdb control message
809 static NTSTATUS
ctdbd_control(struct ctdbd_connection
*conn
,
810 uint32_t vnn
, uint32 opcode
,
811 uint64_t srvid
, uint32_t flags
,
813 TALLOC_CTX
*mem_ctx
, TDB_DATA
*outdata
,
816 struct ctdb_req_control req
;
817 struct ctdb_reply_control
*reply
= NULL
;
818 struct ctdbd_connection
*new_conn
= NULL
;
822 status
= ctdbd_init_connection(NULL
, &new_conn
);
824 if (!NT_STATUS_IS_OK(status
)) {
825 DEBUG(10, ("Could not init temp connection: %s\n",
834 req
.hdr
.length
= offsetof(struct ctdb_req_control
, data
) + data
.dsize
;
835 req
.hdr
.ctdb_magic
= CTDB_MAGIC
;
836 req
.hdr
.ctdb_version
= CTDB_VERSION
;
837 req
.hdr
.operation
= CTDB_REQ_CONTROL
;
838 req
.hdr
.reqid
= ctdbd_next_reqid(conn
);
839 req
.hdr
.destnode
= vnn
;
842 req
.datalen
= data
.dsize
;
845 DEBUG(10, ("ctdbd_control: Sending ctdb packet\n"));
846 ctdb_packet_dump(&req
.hdr
);
848 status
= ctdb_packet_send(
850 data_blob_const(&req
, offsetof(struct ctdb_req_control
, data
)),
851 data_blob_const(data
.dptr
, data
.dsize
));
853 if (!NT_STATUS_IS_OK(status
)) {
854 DEBUG(3, ("ctdb_packet_send failed: %s\n", nt_errstr(status
)));
858 status
= ctdb_packet_flush(conn
->pkt
);
860 if (!NT_STATUS_IS_OK(status
)) {
861 DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status
)));
862 cluster_fatal("cluster dispatch daemon control write error\n");
865 if (flags
& CTDB_CTRL_FLAG_NOREPLY
) {
866 TALLOC_FREE(new_conn
);
873 status
= ctdb_read_req(conn
, req
.hdr
.reqid
, NULL
, (void *)&reply
);
875 if (!NT_STATUS_IS_OK(status
)) {
876 DEBUG(10, ("ctdb_read_req failed: %s\n", nt_errstr(status
)));
880 if (reply
->hdr
.operation
!= CTDB_REPLY_CONTROL
) {
881 DEBUG(0, ("received invalid reply\n"));
886 if (!(outdata
->dptr
= (uint8
*)talloc_memdup(
887 mem_ctx
, reply
->data
, reply
->datalen
))) {
889 return NT_STATUS_NO_MEMORY
;
891 outdata
->dsize
= reply
->datalen
;
894 (*cstatus
) = reply
->status
;
897 status
= NT_STATUS_OK
;
900 TALLOC_FREE(new_conn
);
906 * see if a remote process exists
908 bool ctdbd_process_exists(struct ctdbd_connection
*conn
, uint32 vnn
, pid_t pid
)
916 if (!ctdb_processes_exist(conn
, &id
, 1, &result
)) {
917 DEBUG(10, ("ctdb_processes_exist failed\n"));
923 bool ctdb_processes_exist(struct ctdbd_connection
*conn
,
924 const struct server_id
*pids
, int num_pids
,
927 TALLOC_CTX
*frame
= talloc_stackframe();
933 reqids
= talloc_array(talloc_tos(), uint32_t, num_pids
);
934 if (reqids
== NULL
) {
938 for (i
=0; i
<num_pids
; i
++) {
939 struct ctdb_req_control req
;
943 reqids
[i
] = ctdbd_next_reqid(conn
);
948 * pids[i].pid is uint64_t, scale down to pid_t which
949 * is the wire protocol towards ctdb.
953 DEBUG(10, ("Requesting PID %d/%d, reqid=%d\n",
954 (int)pids
[i
].vnn
, (int)pid
,
957 req
.hdr
.length
= offsetof(struct ctdb_req_control
, data
);
958 req
.hdr
.length
+= sizeof(pid
);
959 req
.hdr
.ctdb_magic
= CTDB_MAGIC
;
960 req
.hdr
.ctdb_version
= CTDB_VERSION
;
961 req
.hdr
.operation
= CTDB_REQ_CONTROL
;
962 req
.hdr
.reqid
= reqids
[i
];
963 req
.hdr
.destnode
= pids
[i
].vnn
;
964 req
.opcode
= CTDB_CONTROL_PROCESS_EXISTS
;
966 req
.datalen
= sizeof(pid
);
969 DEBUG(10, ("ctdbd_control: Sending ctdb packet\n"));
970 ctdb_packet_dump(&req
.hdr
);
972 status
= ctdb_packet_send(
975 &req
, offsetof(struct ctdb_req_control
, data
)),
976 data_blob_const(&pid
, sizeof(pid
)));
977 if (!NT_STATUS_IS_OK(status
)) {
978 DEBUG(10, ("ctdb_packet_send failed: %s\n",
984 status
= ctdb_packet_flush(conn
->pkt
);
985 if (!NT_STATUS_IS_OK(status
)) {
986 DEBUG(10, ("ctdb_packet_flush failed: %s\n",
993 while (num_received
< num_pids
) {
994 struct ctdb_reply_control
*reply
= NULL
;
997 status
= ctdb_read_req(conn
, 0, talloc_tos(), (void *)&reply
);
998 if (!NT_STATUS_IS_OK(status
)) {
999 DEBUG(10, ("ctdb_read_req failed: %s\n",
1000 nt_errstr(status
)));
1004 if (reply
->hdr
.operation
!= CTDB_REPLY_CONTROL
) {
1005 DEBUG(10, ("Received invalid reply\n"));
1009 reqid
= reply
->hdr
.reqid
;
1011 DEBUG(10, ("Received reqid %d\n", (int)reqid
));
1013 for (i
=0; i
<num_pids
; i
++) {
1014 if (reqid
== reqids
[i
]) {
1018 if (i
== num_pids
) {
1019 DEBUG(10, ("Received unknown record number %u\n",
1023 results
[i
] = ((reply
->status
) == 0);
1034 struct ctdb_vnn_list
{
1037 unsigned num_srvids
;
1038 unsigned num_filled
;
1040 unsigned *pid_indexes
;
1044 * Get a list of all vnns mentioned in a list of
1045 * server_ids. vnn_indexes tells where in the vnns array we have to
1048 static bool ctdb_collect_vnns(TALLOC_CTX
*mem_ctx
,
1049 const struct server_id
*pids
, unsigned num_pids
,
1050 struct ctdb_vnn_list
**pvnns
,
1051 unsigned *pnum_vnns
)
1053 struct ctdb_vnn_list
*vnns
= NULL
;
1054 unsigned *vnn_indexes
= NULL
;
1055 unsigned i
, num_vnns
= 0;
1057 vnn_indexes
= talloc_array(mem_ctx
, unsigned, num_pids
);
1058 if (vnn_indexes
== NULL
) {
1062 for (i
=0; i
<num_pids
; i
++) {
1064 uint32_t vnn
= pids
[i
].vnn
;
1066 for (j
=0; j
<num_vnns
; j
++) {
1067 if (vnn
== vnns
[j
].vnn
) {
1075 * Already in the array
1077 vnns
[j
].num_srvids
+= 1;
1080 vnns
= talloc_realloc(mem_ctx
, vnns
, struct ctdb_vnn_list
,
1085 vnns
[num_vnns
].vnn
= vnn
;
1086 vnns
[num_vnns
].num_srvids
= 1;
1087 vnns
[num_vnns
].num_filled
= 0;
1090 for (i
=0; i
<num_vnns
; i
++) {
1091 struct ctdb_vnn_list
*vnn
= &vnns
[i
];
1093 vnn
->srvids
= talloc_array(vnns
, uint64_t, vnn
->num_srvids
);
1094 if (vnn
->srvids
== NULL
) {
1097 vnn
->pid_indexes
= talloc_array(vnns
, unsigned,
1099 if (vnn
->pid_indexes
== NULL
) {
1103 for (i
=0; i
<num_pids
; i
++) {
1104 struct ctdb_vnn_list
*vnn
= &vnns
[vnn_indexes
[i
]];
1105 vnn
->srvids
[vnn
->num_filled
] = pids
[i
].unique_id
;
1106 vnn
->pid_indexes
[vnn
->num_filled
] = i
;
1107 vnn
->num_filled
+= 1;
1110 TALLOC_FREE(vnn_indexes
);
1112 *pnum_vnns
= num_vnns
;
1116 TALLOC_FREE(vnn_indexes
);
1120 bool ctdb_serverids_exist(struct ctdbd_connection
*conn
,
1121 const struct server_id
*pids
, unsigned num_pids
,
1124 unsigned i
, num_received
;
1126 struct ctdb_vnn_list
*vnns
= NULL
;
1128 bool result
= false;
1130 if (!ctdb_collect_vnns(talloc_tos(), pids
, num_pids
,
1131 &vnns
, &num_vnns
)) {
1135 for (i
=0; i
<num_vnns
; i
++) {
1136 struct ctdb_vnn_list
*vnn
= &vnns
[i
];
1137 struct ctdb_req_control req
;
1139 vnn
->reqid
= ctdbd_next_reqid(conn
);
1143 DEBUG(10, ("Requesting VNN %d, reqid=%d, num_srvids=%u\n",
1144 (int)vnn
->vnn
, (int)vnn
->reqid
, vnn
->num_srvids
));
1146 req
.hdr
.length
= offsetof(struct ctdb_req_control
, data
);
1147 req
.hdr
.ctdb_magic
= CTDB_MAGIC
;
1148 req
.hdr
.ctdb_version
= CTDB_VERSION
;
1149 req
.hdr
.operation
= CTDB_REQ_CONTROL
;
1150 req
.hdr
.reqid
= vnn
->reqid
;
1151 req
.hdr
.destnode
= vnn
->vnn
;
1152 req
.opcode
= CTDB_CONTROL_CHECK_SRVIDS
;
1154 req
.datalen
= sizeof(uint64_t) * vnn
->num_srvids
;
1155 req
.hdr
.length
+= req
.datalen
;
1158 DEBUG(10, ("ctdbd_control: Sending ctdb packet\n"));
1159 ctdb_packet_dump(&req
.hdr
);
1161 status
= ctdb_packet_send(
1164 &req
, offsetof(struct ctdb_req_control
,
1166 data_blob_const(vnn
->srvids
, req
.datalen
));
1167 if (!NT_STATUS_IS_OK(status
)) {
1168 DEBUG(10, ("ctdb_packet_send failed: %s\n",
1169 nt_errstr(status
)));
1174 status
= ctdb_packet_flush(conn
->pkt
);
1175 if (!NT_STATUS_IS_OK(status
)) {
1176 DEBUG(10, ("ctdb_packet_flush failed: %s\n",
1177 nt_errstr(status
)));
1183 while (num_received
< num_vnns
) {
1184 struct ctdb_reply_control
*reply
= NULL
;
1185 struct ctdb_vnn_list
*vnn
;
1188 status
= ctdb_read_req(conn
, 0, talloc_tos(), (void *)&reply
);
1189 if (!NT_STATUS_IS_OK(status
)) {
1190 DEBUG(10, ("ctdb_read_req failed: %s\n",
1191 nt_errstr(status
)));
1195 if (reply
->hdr
.operation
!= CTDB_REPLY_CONTROL
) {
1196 DEBUG(10, ("Received invalid reply\n"));
1200 reqid
= reply
->hdr
.reqid
;
1202 DEBUG(10, ("Received reqid %d\n", (int)reqid
));
1204 for (i
=0; i
<num_vnns
; i
++) {
1205 if (reqid
== vnns
[i
].reqid
) {
1209 if (i
== num_vnns
) {
1210 DEBUG(10, ("Received unknown reqid number %u\n",
1215 DEBUG(10, ("Found index %u\n", i
));
1219 DEBUG(10, ("Received vnn %u, vnn->num_srvids %u, datalen %u\n",
1220 (unsigned)vnn
->vnn
, vnn
->num_srvids
,
1221 (unsigned)reply
->datalen
));
1223 if (reply
->datalen
< ((vnn
->num_srvids
+7)/8)) {
1224 DEBUG(10, ("Received short reply\n"));
1228 for (i
=0; i
<vnn
->num_srvids
; i
++) {
1229 results
[vnn
->pid_indexes
[i
]] =
1230 ((reply
->data
[i
/8] & (1<<(i
%8))) != 0);
1246 char *ctdbd_dbpath(struct ctdbd_connection
*conn
,
1247 TALLOC_CTX
*mem_ctx
, uint32_t db_id
)
1253 data
.dptr
= (uint8_t*)&db_id
;
1254 data
.dsize
= sizeof(db_id
);
1256 status
= ctdbd_control(conn
, CTDB_CURRENT_NODE
,
1257 CTDB_CONTROL_GETDBPATH
, 0, 0, data
,
1258 mem_ctx
, &data
, &cstatus
);
1259 if (!NT_STATUS_IS_OK(status
) || cstatus
!= 0) {
1260 DEBUG(0,(__location__
" ctdb_control for getdbpath failed\n"));
1264 return (char *)data
.dptr
;
1268 * attach to a ctdb database
1270 NTSTATUS
ctdbd_db_attach(struct ctdbd_connection
*conn
,
1271 const char *name
, uint32_t *db_id
, int tdb_flags
)
1276 bool persistent
= (tdb_flags
& TDB_CLEAR_IF_FIRST
) == 0;
1278 data
.dptr
= (uint8_t*)name
;
1279 data
.dsize
= strlen(name
)+1;
1281 status
= ctdbd_control(conn
, CTDB_CURRENT_NODE
,
1283 ? CTDB_CONTROL_DB_ATTACH_PERSISTENT
1284 : CTDB_CONTROL_DB_ATTACH
,
1285 tdb_flags
, 0, data
, NULL
, &data
, &cstatus
);
1286 if (!NT_STATUS_IS_OK(status
)) {
1287 DEBUG(0, (__location__
" ctdb_control for db_attach "
1288 "failed: %s\n", nt_errstr(status
)));
1292 if (cstatus
!= 0 || data
.dsize
!= sizeof(uint32_t)) {
1293 DEBUG(0,(__location__
" ctdb_control for db_attach failed\n"));
1294 return NT_STATUS_INTERNAL_ERROR
;
1297 *db_id
= *(uint32_t *)data
.dptr
;
1298 talloc_free(data
.dptr
);
1300 if (!(tdb_flags
& TDB_SEQNUM
)) {
1301 return NT_STATUS_OK
;
1304 data
.dptr
= (uint8_t *)db_id
;
1305 data
.dsize
= sizeof(*db_id
);
1307 status
= ctdbd_control(conn
, CTDB_CURRENT_NODE
,
1308 CTDB_CONTROL_ENABLE_SEQNUM
, 0, 0, data
,
1309 NULL
, NULL
, &cstatus
);
1310 if (!NT_STATUS_IS_OK(status
) || cstatus
!= 0) {
1311 DEBUG(0,(__location__
" ctdb_control for enable seqnum "
1313 return NT_STATUS_IS_OK(status
) ? NT_STATUS_INTERNAL_ERROR
:
1317 return NT_STATUS_OK
;
1321 * force the migration of a record to this node
1323 NTSTATUS
ctdbd_migrate(struct ctdbd_connection
*conn
, uint32 db_id
,
1326 struct ctdb_req_call req
;
1327 struct ctdb_reply_call
*reply
;
1332 req
.hdr
.length
= offsetof(struct ctdb_req_call
, data
) + key
.dsize
;
1333 req
.hdr
.ctdb_magic
= CTDB_MAGIC
;
1334 req
.hdr
.ctdb_version
= CTDB_VERSION
;
1335 req
.hdr
.operation
= CTDB_REQ_CALL
;
1336 req
.hdr
.reqid
= ctdbd_next_reqid(conn
);
1337 req
.flags
= CTDB_IMMEDIATE_MIGRATION
;
1338 req
.callid
= CTDB_NULL_FUNC
;
1340 req
.keylen
= key
.dsize
;
1342 DEBUG(10, ("ctdbd_migrate: Sending ctdb packet\n"));
1343 ctdb_packet_dump(&req
.hdr
);
1345 status
= ctdb_packet_send(
1347 data_blob_const(&req
, offsetof(struct ctdb_req_call
, data
)),
1348 data_blob_const(key
.dptr
, key
.dsize
));
1350 if (!NT_STATUS_IS_OK(status
)) {
1351 DEBUG(3, ("ctdb_packet_send failed: %s\n", nt_errstr(status
)));
1355 status
= ctdb_packet_flush(conn
->pkt
);
1357 if (!NT_STATUS_IS_OK(status
)) {
1358 DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status
)));
1359 cluster_fatal("cluster dispatch daemon control write error\n");
1362 status
= ctdb_read_req(conn
, req
.hdr
.reqid
, NULL
, (void *)&reply
);
1364 if (!NT_STATUS_IS_OK(status
)) {
1365 DEBUG(0, ("ctdb_read_req failed: %s\n", nt_errstr(status
)));
1369 if (reply
->hdr
.operation
!= CTDB_REPLY_CALL
) {
1370 DEBUG(0, ("received invalid reply\n"));
1371 status
= NT_STATUS_INTERNAL_ERROR
;
1375 status
= NT_STATUS_OK
;
1383 * remotely fetch a record without locking it or forcing a migration
1385 NTSTATUS
ctdbd_fetch(struct ctdbd_connection
*conn
, uint32 db_id
,
1386 TDB_DATA key
, TALLOC_CTX
*mem_ctx
, TDB_DATA
*data
)
1388 struct ctdb_req_call req
;
1389 struct ctdb_reply_call
*reply
;
1394 req
.hdr
.length
= offsetof(struct ctdb_req_call
, data
) + key
.dsize
;
1395 req
.hdr
.ctdb_magic
= CTDB_MAGIC
;
1396 req
.hdr
.ctdb_version
= CTDB_VERSION
;
1397 req
.hdr
.operation
= CTDB_REQ_CALL
;
1398 req
.hdr
.reqid
= ctdbd_next_reqid(conn
);
1400 req
.callid
= CTDB_FETCH_FUNC
;
1402 req
.keylen
= key
.dsize
;
1404 status
= ctdb_packet_send(
1406 data_blob_const(&req
, offsetof(struct ctdb_req_call
, data
)),
1407 data_blob_const(key
.dptr
, key
.dsize
));
1409 if (!NT_STATUS_IS_OK(status
)) {
1410 DEBUG(3, ("ctdb_packet_send failed: %s\n", nt_errstr(status
)));
1414 status
= ctdb_packet_flush(conn
->pkt
);
1416 if (!NT_STATUS_IS_OK(status
)) {
1417 DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status
)));
1418 cluster_fatal("cluster dispatch daemon control write error\n");
1421 status
= ctdb_read_req(conn
, req
.hdr
.reqid
, NULL
, (void *)&reply
);
1423 if (!NT_STATUS_IS_OK(status
)) {
1424 DEBUG(0, ("ctdb_read_req failed: %s\n", nt_errstr(status
)));
1428 if (reply
->hdr
.operation
!= CTDB_REPLY_CALL
) {
1429 DEBUG(0, ("received invalid reply\n"));
1430 status
= NT_STATUS_INTERNAL_ERROR
;
1434 data
->dsize
= reply
->datalen
;
1435 if (data
->dsize
== 0) {
1440 data
->dptr
= (uint8
*)talloc_memdup(mem_ctx
, &reply
->data
[0],
1442 if (data
->dptr
== NULL
) {
1443 DEBUG(0, ("talloc failed\n"));
1444 status
= NT_STATUS_NO_MEMORY
;
1449 status
= NT_STATUS_OK
;
1455 struct ctdbd_traverse_state
{
1456 void (*fn
)(TDB_DATA key
, TDB_DATA data
, void *private_data
);
1461 * Handle a traverse record coming in on the ctdbd connection
1464 static NTSTATUS
ctdb_traverse_handler(uint8_t *buf
, size_t length
,
1467 struct ctdbd_traverse_state
*state
=
1468 (struct ctdbd_traverse_state
*)private_data
;
1470 struct ctdb_req_message
*m
;
1471 struct ctdb_rec_data
*d
;
1474 m
= (struct ctdb_req_message
*)buf
;
1476 if (length
< sizeof(*m
) || m
->hdr
.length
!= length
) {
1477 DEBUG(0, ("Got invalid message of length %d\n", (int)length
));
1479 return NT_STATUS_UNEXPECTED_IO_ERROR
;
1482 d
= (struct ctdb_rec_data
*)&m
->data
[0];
1483 if (m
->datalen
< sizeof(uint32_t) || m
->datalen
!= d
->length
) {
1484 DEBUG(0, ("Got invalid traverse data of length %d\n",
1487 return NT_STATUS_UNEXPECTED_IO_ERROR
;
1490 key
.dsize
= d
->keylen
;
1491 key
.dptr
= &d
->data
[0];
1492 data
.dsize
= d
->datalen
;
1493 data
.dptr
= &d
->data
[d
->keylen
];
1495 if (key
.dsize
== 0 && data
.dsize
== 0) {
1496 /* end of traverse */
1497 return NT_STATUS_END_OF_FILE
;
1500 if (data
.dsize
< sizeof(struct ctdb_ltdb_header
)) {
1501 DEBUG(0, ("Got invalid ltdb header length %d\n",
1504 return NT_STATUS_UNEXPECTED_IO_ERROR
;
1506 data
.dsize
-= sizeof(struct ctdb_ltdb_header
);
1507 data
.dptr
+= sizeof(struct ctdb_ltdb_header
);
1510 state
->fn(key
, data
, state
->private_data
);
1514 return NT_STATUS_OK
;
1518 Traverse a ctdb database. This uses a kind-of hackish way to open a second
1519 connection to ctdbd to avoid the hairy recursive and async problems with
1523 NTSTATUS
ctdbd_traverse(uint32 db_id
,
1524 void (*fn
)(TDB_DATA key
, TDB_DATA data
,
1525 void *private_data
),
1528 struct ctdbd_connection
*conn
;
1532 struct ctdb_traverse_start t
;
1534 struct ctdbd_traverse_state state
;
1536 status
= ctdbd_init_connection(NULL
, &conn
);
1537 if (!NT_STATUS_IS_OK(status
)) {
1538 DEBUG(0, ("ctdbd_init_connection failed: %s\n",
1539 nt_errstr(status
)));
1544 t
.srvid
= conn
->rand_srvid
;
1545 t
.reqid
= ctdbd_next_reqid(conn
);
1547 data
.dptr
= (uint8_t *)&t
;
1548 data
.dsize
= sizeof(t
);
1550 status
= ctdbd_control(conn
, CTDB_CURRENT_NODE
,
1551 CTDB_CONTROL_TRAVERSE_START
, conn
->rand_srvid
, 0,
1552 data
, NULL
, NULL
, &cstatus
);
1554 if (!NT_STATUS_IS_OK(status
) || (cstatus
!= 0)) {
1556 DEBUG(0,("ctdbd_control failed: %s, %d\n", nt_errstr(status
),
1559 if (NT_STATUS_IS_OK(status
)) {
1561 * We need a mapping here
1563 status
= NT_STATUS_UNSUCCESSFUL
;
1569 state
.private_data
= private_data
;
1573 status
= NT_STATUS_OK
;
1575 if (ctdb_packet_handler(conn
->pkt
, ctdb_req_complete
,
1576 ctdb_traverse_handler
, &state
, &status
)) {
1578 if (NT_STATUS_EQUAL(status
, NT_STATUS_END_OF_FILE
)) {
1579 status
= NT_STATUS_OK
;
1584 * There might be more in the queue
1589 if (!NT_STATUS_IS_OK(status
)) {
1593 status
= ctdb_packet_fd_read_sync(conn
->pkt
);
1595 if (NT_STATUS_EQUAL(status
, NT_STATUS_RETRY
)) {
1597 * There might be more in the queue
1602 if (NT_STATUS_EQUAL(status
, NT_STATUS_END_OF_FILE
)) {
1603 status
= NT_STATUS_OK
;
1607 if (!NT_STATUS_IS_OK(status
)) {
1608 DEBUG(0, ("ctdb_packet_fd_read_sync failed: %s\n", nt_errstr(status
)));
1609 cluster_fatal("ctdbd died\n");
1619 This is used to canonicalize a ctdb_sock_addr structure.
1621 static void smbd_ctdb_canonicalize_ip(const struct sockaddr_storage
*in
,
1622 struct sockaddr_storage
*out
)
1624 memcpy(out
, in
, sizeof (*out
));
1627 if (in
->ss_family
== AF_INET6
) {
1628 const char prefix
[12] = { 0,0,0,0,0,0,0,0,0,0,0xff,0xff };
1629 const struct sockaddr_in6
*in6
= (struct sockaddr_in6
*)in
;
1630 struct sockaddr_in
*out4
= (struct sockaddr_in
*)out
;
1631 if (memcmp(&in6
->sin6_addr
, prefix
, 12) == 0) {
1632 memset(out
, 0, sizeof(*out
));
1633 #ifdef HAVE_SOCK_SIN_LEN
1634 out4
->sin_len
= sizeof(*out
);
1636 out4
->sin_family
= AF_INET
;
1637 out4
->sin_port
= in6
->sin6_port
;
1638 memcpy(&out4
->sin_addr
, &in6
->sin6_addr
.s6_addr32
[3], 4);
1645 * Register us as a server for a particular tcp connection
1648 NTSTATUS
ctdbd_register_ips(struct ctdbd_connection
*conn
,
1649 const struct sockaddr_storage
*_server
,
1650 const struct sockaddr_storage
*_client
,
1651 void (*release_ip_handler
)(const char *ip_addr
,
1652 void *private_data
),
1656 * we still use ctdb_control_tcp for ipv4
1657 * because we want to work against older ctdb
1658 * versions at runtime
1660 struct ctdb_control_tcp p4
;
1661 #ifdef HAVE_STRUCT_CTDB_CONTROL_TCP_ADDR
1662 struct ctdb_control_tcp_addr p
;
1666 struct sockaddr_storage client
;
1667 struct sockaddr_storage server
;
1670 * Only one connection so far
1672 SMB_ASSERT(conn
->release_ip_handler
== NULL
);
1674 smbd_ctdb_canonicalize_ip(_client
, &client
);
1675 smbd_ctdb_canonicalize_ip(_server
, &server
);
1677 switch (client
.ss_family
) {
1679 memcpy(&p4
.dest
, &server
, sizeof(p4
.dest
));
1680 memcpy(&p4
.src
, &client
, sizeof(p4
.src
));
1681 data
.dptr
= (uint8_t *)&p4
;
1682 data
.dsize
= sizeof(p4
);
1684 #ifdef HAVE_STRUCT_CTDB_CONTROL_TCP_ADDR
1686 memcpy(&p
.dest
.ip6
, &server
, sizeof(p
.dest
.ip6
));
1687 memcpy(&p
.src
.ip6
, &client
, sizeof(p
.src
.ip6
));
1688 data
.dptr
= (uint8_t *)&p
;
1689 data
.dsize
= sizeof(p
);
1693 return NT_STATUS_INTERNAL_ERROR
;
1696 conn
->release_ip_handler
= release_ip_handler
;
1697 conn
->release_ip_priv
= private_data
;
1700 * We want to be told about IP releases
1703 status
= register_with_ctdbd(conn
, CTDB_SRVID_RELEASE_IP
);
1704 if (!NT_STATUS_IS_OK(status
)) {
1709 * inform ctdb of our tcp connection, so if IP takeover happens ctdb
1710 * can send an extra ack to trigger a reset for our client, so it
1711 * immediately reconnects
1713 return ctdbd_control(conn
, CTDB_CURRENT_NODE
,
1714 CTDB_CONTROL_TCP_CLIENT
, 0,
1715 CTDB_CTRL_FLAG_NOREPLY
, data
, NULL
, NULL
, NULL
);
1719 * We want to handle reconfigure events
1721 NTSTATUS
ctdbd_register_reconfigure(struct ctdbd_connection
*conn
)
1723 return register_with_ctdbd(conn
, CTDB_SRVID_RECONFIGURE
);
1727 call a control on the local node
1729 NTSTATUS
ctdbd_control_local(struct ctdbd_connection
*conn
, uint32 opcode
,
1730 uint64_t srvid
, uint32_t flags
, TDB_DATA data
,
1731 TALLOC_CTX
*mem_ctx
, TDB_DATA
*outdata
,
1734 return ctdbd_control(conn
, CTDB_CURRENT_NODE
, opcode
, srvid
, flags
, data
, mem_ctx
, outdata
, cstatus
);
1737 NTSTATUS
ctdb_watch_us(struct ctdbd_connection
*conn
)
1739 struct ctdb_client_notify_register reg_data
;
1744 reg_data
.srvid
= CTDB_SRVID_SAMBA_NOTIFY
;
1746 reg_data
.notify_data
[0] = 0;
1748 struct_len
= offsetof(struct ctdb_client_notify_register
,
1749 notify_data
) + reg_data
.len
;
1751 status
= ctdbd_control_local(
1752 conn
, CTDB_CONTROL_REGISTER_NOTIFY
, conn
->rand_srvid
, 0,
1753 make_tdb_data((uint8_t *)®_data
, struct_len
),
1754 NULL
, NULL
, &cstatus
);
1755 if (!NT_STATUS_IS_OK(status
)) {
1756 DEBUG(1, ("ctdbd_control_local failed: %s\n",
1757 nt_errstr(status
)));
1762 NTSTATUS
ctdb_unwatch(struct ctdbd_connection
*conn
)
1764 struct ctdb_client_notify_deregister dereg_data
;
1768 dereg_data
.srvid
= CTDB_SRVID_SAMBA_NOTIFY
;
1770 status
= ctdbd_control_local(
1771 conn
, CTDB_CONTROL_DEREGISTER_NOTIFY
, conn
->rand_srvid
, 0,
1772 make_tdb_data((uint8_t *)&dereg_data
, sizeof(dereg_data
)),
1773 NULL
, NULL
, &cstatus
);
1774 if (!NT_STATUS_IS_OK(status
)) {
1775 DEBUG(1, ("ctdbd_control_local failed: %s\n",
1776 nt_errstr(status
)));